Where'd you roughly put the start as?
Looking at CRPGs specifically, I'd say Original Sin 1 and PoE 1 (so 2014 and 2015 respectively [EDIT: Shadowrun Returns and SR Dragonfall also released in 2013 and 2014 respectively, with the first being another big kickstarter success story and Dragonfall being one of the best CRPGs of all time, period]), with the most recent really well selling CRPG being Pathfinder Kingmaker from late last year.
Looking at how well Kingmaker and especially Original Sin 2 are doing right now, the new golden age of CRPGs is still going strong, and will gain even more steam with BG3 (unless Larian turn it into a different sort of RPG, which I really doubt) and the eventual releases of the next Owlcat Pathfinder game and Original Sin 3. Obsidian is struggling after the AFAIR rather weak sales of Tyranny and Pillars 2 (a real shame especially in the case of Tyranny, the game is fantastic and really unique) which are pretty much an outlier though, but probably the main reasons they allowed themselves to be bought up by Microsoft (it remains to be seen if they will continue developing CRPGs, but I doubt it).
